I recently felt that effect in an old norse class here in Germany.

I had to translate brast into German. Bresta follows the 3rd class of strong verbs (old norse still has more or less rules for the strong verbs): bresta, brast, (brustum,) brostit - to burst, bursted, burst (archaic: to burst, brast, bursten)

The same verb also exists in German: bersten, barst, geborsten

However it's not that common today and the past tense is also extremely uncommon in speach. This led me inflect it weak (regular).